Add commit author and date to diff display page.

diff --git a/pygit/pygit.py b/pygit/pygit.py
index 8b0d229..57a2280 100644
--- a/pygit/pygit.py
+++ b/pygit/pygit.py
@@ -161,3 +161,7 @@ def commit_message(rid,cid):
   r = open_repo(rid)
   c = r.commit(cid)
   return c.message
+
+def commit(rid,cid):
+  r = open_repo(rid)
+  return r.commit(cid)
diff --git a/pygit/views.py b/pygit/views.py
index a2ca5b9..9fb3abd 100644
--- a/pygit/views.py
+++ b/pygit/views.py
@@ -93,7 +93,10 @@ def format_diff(diff):
   return diff[0], '\n'.join(map(format_line,lines)), diff[2]

 def diff_file(request,rid,branch,cid,path):
-  message = pygit.commit_message(rid,cid)
+  commit = pygit.commit(rid,cid)
+  message = commit.message
+  author = commit.author.name
+  date = pygit.date(commit.authored_date)
   total,files = pygit.commit_stats(rid,cid)
   ds = pygit.diff_path(rid,path,cid)
   if ds:
@@ -102,6 +105,8 @@ def diff_file(request,rid,branch,cid,path):
   ds = map(format_diff,ds)
   return render_it('git_diff.html',
     {'repo': repo,
+     'author': author,
+     'date': date,
      'message': message,
      'branch': branch,
      'path': path,
@@ -111,7 +116,10 @@ def diff_file(request,rid,branch,cid,path):
     request)

 def diff_all(request,rid,branch,cid):
-  message = pygit.commit_message(rid,cid)
+  commit = pygit.commit(rid,cid)
+  message = commit.message
+  author = commit.author.name
+  date = pygit.date(commit.authored_date)
   total,files = pygit.commit_stats(rid,cid)
   ds = pygit.diff_all(rid,cid)
   if ds:
@@ -120,6 +128,8 @@ def diff_all(request,rid,branch,cid):
   ds = map(format_diff,ds)
   return render_it('git_diff.html',
     {'repo': repo,
+     'author': author,
+     'date': date,
      'message': message,
      'branch': branch,
      'path': None,
diff --git a/templates/git_diff.html b/templates/git_diff.html
index 58fb4ed..4df4822 100644
--- a/templates/git_diff.html
+++ b/templates/git_diff.html
@@ -6,6 +6,7 @@

 <h2>Diff: #{{cid}}{% if path %} {{path}}{% endif %}</h2>
 <p><a href='{% url pygit.views.diff_all repo.rid,branch,cid %}'>Коммит: {{message}}</a></p>
+<p>Автор: {{author}}, дата: {{date}}</p>
 <p>Всего файлов: {{total_stats.files}}, всего строк: {{total_stats.lines}},
 всего новых строк: {{total_stats.insertions}}, всего удалено строк: {{total_stats.deletions}}</p>
 {% autoescape off %}